That's a really good question. I went into this project knowing I would be staying in the crypto-space long term, and I also enjoy building computers. Instead of continually investing personal money every month, I thought I could create this rig as a 1 time investment, and have recurring investments from the rig every month. I also knew I would be living in the mountains with a much cooler environment, and that is what allows me to run the rig in my own bedroom.
I only say this because it's all about your circumstances. If I wasn't planning to invest this money it would be much less worthwhile, if I wasn't living in the mountains I couldn't run it.
I ran into small issues every step of the way (some of which I've been too lazy to fix and am making less money because of it). It's a bumpy process for sure. Trying to get 6 cards crammed into one case on one motherboard with Windows 10 isn't an easy task. For those who are willing to put the time into debugging and doing research, this isn't a problem.
Now that I finally have a consistently running server I'm making decent ROI. If all 6 of my cards were running at full capacity I should be making $420 a month. However since I have an enclosed case, I overheat if I run at full capacity, and so it's throttled significantly, plus I'm only able to run 5 cards due to a defective motherboard I haven't had the time to replace.
I'm expecting $250/mo as a minimum and once it gets colder I might turn it into open-air and be making $300-400/mo. Keep in mind I'm re-investing this money so it could be worth $500, $1000, or $0 by the time I'm done with it. If I wasn't planning to re-invest it wouldn't be as worth it to me.
At the end of the day it depends 100% on your situations. If you live in a cold climate and want to make money and use a mining rig as a heater, you can create an open-air case and likely be able to make decent returns. If you can't handle the heat, or don't have a garage or something to put the rig in, mining probably won't work well for you.
If I had the choice to go back and never do this or do it again, I would do it again for sure. We'll see if the profit per day goes up or down in the future. It's very possible that I would be making much less in a month from now or I could be making much more in a month from now. It is risky, and if you don't want to risk your money, you probably shouldn't.